:root{
    /* color */
    --lo-color-white: #ffffff;
    --lo-color-black: #000000;
    --lo-color-primary: #409eff;
    --lo-color-primary-light-3: #79bbff;
    --lo-color-primary-light-5: #a0cfff;
    --lo-color-primary-light-7: #c6e2ff;
    --lo-color-primary-light-8: #d9ecff;
    --lo-color-primary-light-9: #ecf5ff;
    --lo-color-primary-dark-2: #337ecc;
    --lo-color-success: #67c23a;
    --lo-color-success-light-3: #95d475;
    --lo-color-success-light-5: #b3e19d;
    --lo-color-success-light-7: #d1edc4;
    --lo-color-success-light-8: #e1f3d8;
    --lo-color-success-light-9: #f0f9eb;
    --lo-color-success-dark-2: #529b2e;
    --lo-color-warning: #e6a23c;
    --lo-color-warning-light-3: #eebe77;
    --lo-color-warning-light-5: #f3d19e;
    --lo-color-warning-light-7: #f8e3c5;
    --lo-color-warning-light-8: #faecd8;
    --lo-color-warning-light-9: #fdf6ec;
    --lo-color-warning-dark-2: #b88230;
    --lo-color-danger: #f56c6c;
    --lo-color-danger-light-3: #f89898;
    --lo-color-danger-light-5: #fab6b6;
    --lo-color-danger-light-7: #fcd3d3;
    --lo-color-danger-light-8: #fde2e2;
    --lo-color-danger-light-9: #fef0f0;
    --lo-color-danger-dark-2: #c45656;
    --lo-color-error: #f56c6c;
    --lo-color-error-light-3: #f89898;
    --lo-color-error-light-5: #fab6b6;
    --lo-color-error-light-7: #fcd3d3;
    --lo-color-error-light-8: #fde2e2;
    --lo-color-error-light-9: #fef0f0;
    --lo-color-error-dark-2: #c45656;
    --lo-color-info: #909399;
    --lo-color-info-light-3: #b1b3b8;
    --lo-color-info-light-5: #c8c9cc;
    --lo-color-info-light-7: #dedfe0;
    --lo-color-info-light-8: #e9e9eb;
    --lo-color-info-light-9: #f4f4f5;
    --lo-color-info-dark-2: #73767a;

    --lo-bg-color: #ffffff;
    --lo-bg-color-page: #f2f3f5;
    --lo-bg-color-overlay: #ffffff;
    --lo-text-color-primary: #303133;
    --lo-text-color-regular: #606266;
    --lo-text-color-secondary: #909399;
    --lo-text-color-placeholder: #a8abb2;
    --lo-text-color-disabled: #c0c4cc;
    --lo-border-color: #dcdfe6;
    --lo-border-color-light: #e4e7ed;
    --lo-border-color-lighter: #ebeef5;
    --lo-border-color-extra-light: #f2f6fc;
    --lo-border-color-dark: #d4d7de;
    --lo-border-color-darker: #cdd0d6;
    --lo-fill-color: #f0f2f5;
    --lo-fill-color-light: #f5f7fa;
    --lo-fill-color-lighter: #fafafa;
    --lo-fill-color-extra-light: #fafcff;
    --lo-fill-color-dark: #ebedf0;
    --lo-fill-color-darker: #e6e8eb;
    --lo-fill-color-blank: #ffffff;

    /* border */
    --lo-border-width: 1px;
    --lo-border-style: solid;
    --lo-border-color-hover: var(--lo-text-color-disabled);
    --lo-border: var(--lo-border-width) var(--lo-border-style) var(--lo-border-color);
    --lo-border-radius-base: 4px;
    --lo-border-radius-small: 2px;
    --lo-border-radius-round: 20px;
    --lo-border-radius-circle: 100%;

    /* font */
    --lo-font-size-extra-large: 20px;
    --lo-font-size-large: 18px;
    --lo-font-size-medium: 16px;
    --lo-font-size-base: 14px;
    --lo-font-size-small: 13px;
    --lo-font-size-extra-small: 12px;
    --lo-font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "\5fae\8f6f\96c5\9ed1", Arial, sans-serif;
    --lo-font-weight-primary: 500;

    /* disabled */
    --lo-disabled-bg-color: var(--lo-fill-color-light)
    --lo-disabled-text-color: var(--lo-text-color-placeholder)
    --lo-disabled-border-color: var(--lo-border-color-light)

    /*animation*/
    --lo-transition-duration: .3s;
    --lo-transition-duration-fast: .2s;
}